TUNNELLED is a playable word

tunnel Scrabble® Dictionary

verb
tunneled, tunneling, tunnels or tunnelled, tunnelling, tunnels
to dig a tunnel (an underground passageway)
92 Playable Words can be made from "TUNNELLED"
   2-Letter Words (10 found)
   3-Letter Words (25 found)
   5-Letter Words (13 found)
   6-Letter Words (9 found)
   8-Letter Words (1 found)
   9-Letter Words (1 found)